Buster-bar.



.I. T. CONEENY & W. YOUNG.

BUSTER BAR. APPLICATION FILED MAYZS I917.

1 ,266,Q l 5 v Patented May 14, 1918.

wig/h ed you? EUNTTEE %TATE@ PATENT @FFTQE.

JOHN T. CONEENY AND WILFIRED YOUNG, OF SOMERVILLE, MASSACHUSETTS.

BUSTER-BAR.

Application filed May 29, 1917.

To all whom it may concern:

Be it known that we,.JoHN T. CoNnnNY and l/VILFRED Yoone, of Somerville, in the county of Middlesex and State of Massa chusetts, have invented certain new and use ful Improvements in Buster-Bars, of which the following is a specification.

This invention relates to devices for forcing structural closures such as the doors or windows of burning buildings, and-for other purposes.

The laws of most localities require that the exit doors of schools, theaters, and meeting halls, shall open outwardly. When necessity makes it advisable for firemen to force an exit door, it is far more difficult to open a locked door which opens outwardly than one which opens inwardly, unless the door is smashed with an ax. This takes valuable time and utterly ruins the door. The principal object of this invention is to produce a tool which can beused to expeditiously burst or force open an outwardly closing door, from the outside, by a prying action that will separate the edge of the door from the casing sufficiently to entirely release the locking mechanism from its keeper, and that will do this regardless of the shape or dimensions of the casing molding. The tool is useful for other purposes as hereinafter explained.

Of the accompanying drawings which illustrate one embodiment of our invention:

Figures 1 and 2 are, respectively, a side elevation and a plan view.

Fig. 3 represents a section on line 3-3 of Fig. 2.

The bar a of suitable strong metal and of any desired length as indicated by the broken out portions, has a prying end I) and, preferably, a hammer end 0. The prying end is best curved as shown in Fig. 1 and widened as shown in Fig. 2, to a thin or sharp edge. At a point a few inches from the operating end I; the bar is provided with two fixed projections extending from opposite sides, the same being conveniently formed by a pin (Z extending through a hole in the bar.

The fulcrum member 6, preferably cylindrical in form, has two arms f each having a slot g. The projections al extend through the slots g and are preferably provided with collars or washers b the structure being such that the bar always carries its fulcrum Specification of Letters Patent.

Patented May 14, 1918.

Serial No. 171,895.

and yet said fulcrum can be utilized'at any one of a wide variety of positions relatively to the end of the bar according to the style or width of molding of the casing of the door to be forced, or according to the purchase or power that is desired to be effected. Three of such positions are indicated by the full and dotted lines in Fig. 1.

In operation, the user inserts the edge of portion 7) in the desired location of a crevice between a door and easing, or wherever else the tool is to be used, and shifts the fulcrum e to proper bearing against the door casing or other stationary support for such fulcrum, and then operates the bar as a lever to pry the door open or force anything else with which the end 6 is engaged. The member 6 may be provided with a few teeth 2', preferably in the form of angular ribs or ridges parallel with its axis, projecting from its lower portion to prevent slipping, the upper portion on which the bar bears being smooth to permit of easy shifting of the bar lengthwise over the fulcrum.

We do not limit ourselves to the particular use of the tool as first herein mentioned. It may be used for forcing locked Windows open, for ripping off shingles or slate roofing, for forcing openings in flooring boards, and for many other more domestic or business purposes.

By running a cord or strap through the upper portions of the slots g, the tool can be conveniently so attached to the wrist or clothing of a fireman thathe can not drop it when on a ladder or in some place where his work would be hampered by its loss. By attachment to the wrist of the user, the hammer end of the tool can be used for breaking glass, with great force, without risk of dropping the tool. And of course the mere presence of the parts e, f on the bar will greatly reduce liability of loss of the tool when being used as a hammer, because said parts prevent the bar from sliding through the grip of the users hand.

Having now described our invention, we claim:

1. A. tool of the character described hav ing a fulcrum member mounted opposite one face near the operative end of the tool, and connections between said tool and fulcrum member for retaining the latter opposite said face and permitting it to be moved within predetermined limits along and in contact with said face, the coiiperating sur faces of the tool and fulcrum member being formed or shaped to permit the tool to rock on the fulcrum member regardless of the position of the latter along said face of the tool.

2 A. tool of. the character described comprising a bar having a thin prying end and a longitudinally curved and laterally flat facenear said ench a fulcrum member round in cross section adjustable along said face, and Connections between said bar and fulcrum member for retaining the latter in operative 1: tion and preventing from rotating around the bar.

3. A tool of the character described comprising a bar having a prying end, said bar having projections fromtwo of its sides, and a fulcrum member having slotted arms mounted on said projections and shiftable toward and from said prying end.

41:. A tool of the character described comprising a bar baring a prying end, said bar having projections from two ofits sides, and a fulcrum member circular in cross section and having slotted arms mounted on said projections and shiitable toward an from said prying end. 1

5. A tool of the character described comprising a bar having a prying end said bar having projections from two of its sides, and a fulcrum member circular in cross section and having slotted arms mounted on said projections and shift-able toward and from said prying end, the lower surface of the circular fulcrum member having projections to prevent slipping.

In testimony whereof'we have afixed our signatures.

' J T. CONEENY.

WILFRED YOUNG.

@ cclea c2 this patent may be obtained for we cents each, by addressing the Gcmm lspiomer at @aieata,

Washington, Q. 

